A well-paced thriller. Steven Cale (Stoltz) leads a small documentary film crew down the Amazon in search of a lost tribe. Along the way, they pick up stranded snake poacher Paul Sarone (Voight). Soon enough, Cale is in a coma, Sarone is in charge and the lost tribe is going to stay that way. As the boat heads down a tributary, Sarone blows up a tangle of vines and trees blocking their passage, causing a downpour of creepy, crawly snakes. Thus the stage is set for the title character's revenge. Voight leaves no acting muscle untwitched with his over-the-top and slyly humorous villain.